CN217217140U - Traction inverter and railway vehicle - Google Patents
Traction inverter and railway vehicle Download PDFInfo
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- CN217217140U CN217217140U CN202220871958.8U CN202220871958U CN217217140U CN 217217140 U CN217217140 U CN 217217140U CN 202220871958 U CN202220871958 U CN 202220871958U CN 217217140 U CN217217140 U CN 217217140U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The application provides a traction inverter and a railway vehicle, the traction inverter comprises a box body component, a gate driving component and a power module, the box body component comprises a box body and a box body bracket connected with the box body, the power module is arranged in the box body, the gate driving component comprises a mounting frame, a driving circuit module and a stop piece, the driving circuit module is arranged on the mounting frame and is electrically connected with the power module, the mounting frame is provided with a mounting end surface facing the box body bracket, a first mounting hole is formed in the first end of the mounting end surface, the second end of the mounting end surface is connected with the stop piece, one end of the box body bracket is connected with the box body, a gap is formed between the other end of the box body bracket and the box body, the mounting frame is connected onto the box body bracket through a fastener penetrating through the first mounting hole, and the stop piece is inserted into and clamped in the gap so as to enable the gate driving component and the box body bracket to be relatively fixed, the portable mounting and dismounting of the internal parts can be realized under the condition of small mounting space.
Description
Technical Field
The application belongs to the field of inverters, and particularly relates to a traction inverter and a rail vehicle.
Background
The traction inverter is used as a core component of the train, is arranged at the bottom of the train, converts direct current from a contact net into alternating current, and realizes starting, braking and speed regulation of the alternating current traction motor through voltage regulation and frequency regulation.
The existing traction inverter comprises a cabinet body, a power module, a driving assembly and the like, wherein the cabinet body comprises a frame structure, a top plate, a bottom plate and a partition plate and is used for placing the internal power module and the driving assembly and protecting internal parts from being damaged, the cabinet body is divided into a left compartment and a right compartment by the partition plate, the driving assembly is fixed in the left compartment, the power module is fixed in the right compartment, the driving assembly drives the power module, and the power module converts direct current into alternating current.
However, the internal parts of the traction inverter are installed in a bolt and nut matching mode, one side of the nut is often shielded by other parts, the installation space is small, and the installation and the disassembly are inconvenient.
SUMMERY OF THE UTILITY MODEL
To prior art's not enough, this application provides a pull dc-to-ac converter and rail vehicle, can realize that the portable installation of internals is dismantled under the little condition of installation space.
The utility model provides a pull dc-to-ac converter, including the box subassembly, gate drive subassembly and power module etc, the box subassembly includes the box and connects in the box support of box, power module sets up in the box, gate drive subassembly includes the mounting bracket, drive circuit module and retainer, drive circuit module sets up on the mounting bracket, and be connected with the power module electricity, the mounting bracket has the installation terminal surface towards the box support, the first end of installation terminal surface has first mounting hole, the second end of installation terminal surface is connected with the retainer, the one end of box support is connected in the box, and have the clearance between the other end of box support and the box, the mounting bracket is connected on the box support through the fastener of wearing to locate first mounting hole, and the retainer inserts and the joint in the clearance, so that gate drive subassembly and box support relatively fixed.
Optionally, the box body support is further provided with a second mounting hole, and when the retainer is clamped in the gap, the first mounting hole and the second mounting hole are arranged oppositely.
Optionally, one end of the stop member is connected to the second end of the mounting bracket and the other end extends away from the first end of the mounting bracket.
Optionally, the retainer comprises a fixing portion, a bending portion and a clamping portion, the fixing portion, the bending portion and the clamping portion are sequentially arranged along the extending direction of the retainer, the fixing portion is connected to the mounting frame, the first end of the bending portion is connected to the fixing portion, the second end of the bending portion bends towards the box body support, and the clamping portion is connected to the second end of the bending portion and clamped in the gap.
Optionally, the clamping portion protrudes towards the mounting frame, and the highest point of the protrusion of the clamping portion is flush with the height of the fixing portion.
Optionally, the box body support includes a support body and a support portion, the support portion is disposed at one end of the support body, the support body is connected to the box body through the support portion, and a gap is formed between one end of the support body departing from the support portion and the box body.
Optionally, a hollow groove is formed in the bracket body, and the stop piece extends into the gap from the edge of the hollow groove.
Optionally, the driving circuit module comprises a gate driving circuit.
Optionally, the first mounting hole or the second mounting hole is a threaded hole, and the fastener sequentially penetrates through the first mounting hole and the second mounting hole and is screwed with threads of the threaded hole.
The present application provides a rail vehicle including a traction inverter.
The application provides a traction inverter and a railway vehicle, the traction inverter comprises a box body component, a gate driving component, a power module and the like, the box body component comprises a box body and a box body bracket connected with the box body, the power module is arranged in the box body, the gate driving component comprises a mounting frame, a driving circuit module and a stop piece, the driving circuit module is arranged on the mounting frame and is electrically connected with the power module, the mounting frame is provided with a mounting end surface facing the box body bracket, a first mounting hole is formed in the first end of the mounting end surface, the second end of the mounting end surface is connected with the stop piece, one end of the box body bracket is connected with the box body, a gap is formed between the other end of the box body bracket and the box body, the mounting frame is connected with the box body bracket through a fastener penetrating through the first mounting hole, and the stop piece is inserted into and clamped in the gap so as to enable the gate driving component and the box body bracket to be relatively fixed, the portable mounting and dismounting of the internal parts can be realized under the condition of small mounting space.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a traction inverter provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a gate drive assembly according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a box bracket according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a stopper provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a rail vehicle according to an embodiment of the present application.
Description of reference numerals:
100-traction inverter and rail vehicle;
200-a traction inverter;
300-a rail vehicle;
400-high pressure tank;
500-an electric motor;
210-a case assembly;
220-gate drive assembly;
230-a power module;
211-a box body;
212-a case holder;
213-a gap;
221-a mounting frame;
222-a driving circuit module;
223-a stop;
224-a fastener;
2121-a second mounting hole;
2122-a stent body;
2123-a support part;
2124-hollow-out groove;
2211-mounting end face;
2212-first mounting hole;
2213-first end;
2214-second end;
2221-gate drive circuit;
2231-a fixed part;
2232-a bent part;
2233-a snap-in part.
Detailed Description
In order to make the aforementioned objects, features and advantages of the embodiments of the present application more comprehensible, embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The existing traction inverter comprises a cabinet body, a power module, a driving assembly and the like, wherein the cabinet body comprises a frame structure, a top plate, a bottom plate and a partition plate and is used for placing an internal power module and the driving assembly and protecting internal parts from being damaged, the cabinet body is divided into a left compartment and a right compartment by the partition plate, the driving assembly is fixed in the left compartment, the power module is fixed in the right compartment, the driving assembly drives the power module, and the power module realizes the purpose of converting direct current into alternating current.
However, internal parts of the traction inverter are installed in a bolt-nut matching mode, one side of the nut is often shielded by other parts, and the installation space is small, so that the traction inverter is inconvenient to install and disassemble.
In order to solve the problems, the application provides a traction inverter and a rail vehicle, the traction inverter comprises a box body assembly, a gate driving assembly, a power module and the like, a stop piece connected with a second end of an installation end face in the gate driving assembly is clamped in a gap between a box body support and a box body of the box body assembly, and a first end of the installation end face is connected to the box body support through a fastener penetrating through one side of a first installation hole, so that the gate driving assembly and the box body support are relatively fixed, and the portable installation and disassembly of internal parts can be realized under the condition of small installation space.
The details of the present application will now be further described with reference to the drawings and detailed description.
The existing traction inverter comprises a cabinet body, a power module, a driving assembly and the like, wherein the cabinet body comprises a frame structure, a top plate, a bottom plate and a partition plate, the frame structure is used for placing an internal power module and the driving assembly and protecting internal parts from being damaged, the partition plate divides the cabinet body into a left compartment and a right compartment, the driving assembly is fixed in the left compartment, the power module is fixed in the right compartment, the driving assembly drives the power module, the power module realizes the conversion of direct current into alternating current, however, the internal parts of the traction inverter are installed in a bolt-nut matching mode, one side of a nut is often shielded by other parts, the installation space is small, the installation and the disassembly are not convenient, the traction inverter and a rail vehicle comprise a box body assembly, a gate driving assembly, the power module and the like, the gate driving assembly is provided with an installation frame, and the installation frame is provided with an installation end face facing a box body support, the retainer joint of connecting through mounting surface second end is in the clearance between the box support of box subassembly and box to and the first end of mounting surface is connected on the box support through the fastener of wearing to locate first mounting hole one side, thereby makes gate pole drive assembly's mounting bracket and box support relatively fixed, and then makes gate pole drive assembly and box support relatively fixed, can realize that internals's portable installation is dismantled under the little condition of installation space.
Fig. 1 is a schematic structural diagram of a traction inverter provided in an embodiment of the present application. As shown in fig. 1, the traction inverter 200 includes a box assembly 210, a gate driving assembly 220, and a power module 230, wherein the box assembly 210 is used for supporting and fixing the gate driving assembly 220 and the power module 230, the box assembly 210 includes a box 211 and a box bracket 212, one end of the box 211 is fixed on the rail vehicle 300, and the other end is connected with the box bracket 212, so as to support and fix the gate driving assembly 220 and the power module 230.
Further, the Gate driving assembly 220 includes a power module, a capacitor, and a resistor, the power module outputs a power for driving the Gate after passing through a noise filter, the capacitor is used as a logic device for controlling power shutdown and a backup power for driving the Gate, the resistor is used for preventing an inrush current, the Gate driving assembly 220 operates as a power driving power module 230, the power module 230 is disposed in the box 211, the power module 230 includes an Insulated Gate Bipolar Transistor (IGBT), a filter capacitor, a cooler, and the like, a direct current of a power grid is transmitted to the traction inverter 200 through a contactor, a fuse, and the like, the Gate driving assembly 220 operates as the power driving power module 230, and the power module 230 converts the direct current into an alternating current.
In particular, gate drive assembly 220 includes a mounting bracket 221, a drive circuit module 222, and a stop 223. Fig. 2 is a schematic structural diagram of a gate driving device according to an embodiment of the present disclosure. As shown in fig. 2, the mounting bracket 221 forms a frame structure of the gate driving assembly 220, and is used for accommodating the driving circuit module 222, the stopper 223 and electric devices inside the gate driving assembly 220, and protecting the internal parts from being damaged by the outside, the driving circuit module 222 is disposed on the mounting bracket 221 and electrically connected to the power module 230, the power module 230 is driven by the gate driving assembly 220 to convert the direct current into the alternating current, specifically, the mounting bracket 221 has a mounting end 2211 facing the box holder 212, a first end 2213 of the mounting end 2211 has a first mounting hole 2212 for connecting with the box holder 212 of the box assembly 210, a second end 2214 of the mounting end 2211 is connected with the stopper 223, one end of the box holder 212 is connected to the box 211, and a gap 213 is formed between the other end of the box holder 212 and the box 211, the mounting bracket 221 is connected to the box holder 212 by a fastener 224 penetrating through the first mounting hole 2212, and the stop piece 223 is inserted into and clamped in the gap 213, so that the gate driving assembly 220 and the box body bracket 212 are relatively fixed, because the first end 2213 of the installation end surface 2211 of the gate driving assembly 220 is connected to the box body bracket 212 through the fastener 224 penetrating through one side of the first installation hole 2212, the structure of the other side of the box body bracket 212 does not need to be considered, and the second end 2214 of the installation frame 221 is inserted into and clamped in the gap 213 between the box body bracket 212 and the box body 211 through the stop piece 223, so that the gate driving assembly 220 and the box body bracket 212 are relatively fixed, and the portable installation and disassembly of internal parts can be realized under the condition of small installation space.
Optionally, the housing bracket 212 further has a second mounting hole 2121. Fig. 3 is a schematic structural diagram of a box body support provided in an embodiment of the present application. As shown in fig. 3, when the stop member 223 is engaged in the gap 213, the first mounting hole 2212 and the second mounting hole 2121 are disposed opposite to each other, and specifically, when the stop member 223 is engaged in the gap 213 between the box bracket 212 and the box body 211, the second end 2214 of the mounting bracket 221 and one end of the box body bracket 212 are fixed to each other, since the second mounting hole 2121 is formed in the casing bracket 212, and the first mounting hole 2212 and the second mounting hole 2121 are oppositely disposed, the first end 2213 of the mounting bracket 221 of the gate driving assembly 220 is connected to the casing bracket 212 by the fastening member 224 passing through one side of the first mounting hole 2212 and the second mounting hole 2121 which are oppositely disposed, thereby relatively fixing the mounting bracket 221 of the gate drive assembly 220 and the casing support 212, therefore, the gate drive assembly 220 and the box bracket 212 are relatively fixed, and the internal parts can be installed and detached in a portable manner under the condition of small installation space.
Optionally, one end of the stop member 223 is connected to the second end 2214 of the mounting bracket 221, and the other end extends away from the first end 2213 of the mounting bracket 221, and in particular, one end of the stop member 223 is connected to the second end 2214 of the mounting bracket 221 for supporting and fixing on the mounting bracket 221, and the other end of the stop member 223 extends away from the first end 2213 of the mounting bracket 221 for clamping the other end of the stop member 223 in the gap 213 between the box bracket 212 and the box body 211 when the gate driving assembly 220 and the box body bracket 212 are mounted, so that the second end 2214 of the mounting bracket 221 and one end of the box body bracket 212 are relatively fixed.
Alternatively, the stopper 223 includes a fixing portion 2231, a bent portion 2232, and a clamping portion 2233, which are sequentially arranged in an extending direction of the stopper 223. Fig. 4 is a schematic structural diagram of a stopper provided in an embodiment of the present application. As shown in fig. 4, the fixing portion 2231 is connected to the second end 2214 of the mounting bracket 221 and configured to be supported and fixed on the mounting bracket 221, the first end 2213 of the bending portion 2232 is connected to the fixing portion 2231, the second end 2214 of the bending portion 2232 is bent toward the box body bracket 212 and connected to the clamping portion 2233, on one hand, the transition fixing portion 2231 and the clamping portion 2233 are connected to each other, on the other hand, the clamping portion 2233 can be clamped in the gap 213 between the box body bracket 212 and the box body 211, the clamping portion 2233 is connected to the second end 2214 of the bending portion 2232 and clamped in the gap 213, and configured to be clamped in the gap 213 between the box body bracket 212 and the box body 211, and under the cooperation of the fixing portion 2231, the bending portion 2232 and the clamping portion 2233, the second end 2214 of the mounting bracket 221 and one end of the box body bracket 212 are relatively fixed.
Optionally, the clamping portion 2233 protrudes toward the mounting frame 221, and the highest point of protrusion of the clamping portion 2233 is flush with the height of the fixing portion 2231, specifically, the clamping portion 2233 protrudes toward the mounting frame 221, and the highest point of protrusion of the clamping portion 2233 is flush with the height of the fixing portion 2231, so that the fixing portion 2231 and the clamping portion 2233 can be kept at the same horizontal plane, and the second end 2214 of the mounting frame 221 and one end of the box support 212 are located at the same horizontal plane, thereby ensuring the sealing and integrity of the mounting frame 221 and the box support 212.
Alternatively, the case bracket 212 includes a bracket main body 2122 and a supporting portion 2123, the supporting portion 2123 is disposed at one end of the bracket main body 2122, the bracket main body 2122 is connected to the case 211 through the supporting portion 2123, a gap 213 is formed between one end of the bracket main body 2122 facing away from the supporting portion 2123 and the case 211, specifically, the supporting portion 2123 is disposed at one end of the bracket main body 2122, the bracket main body 2122 is connected to the case 211 through the supporting portion 2123, the supporting portion 2123 functions to connect the bracket main body 2122 and the case 211, the bracket main body 2122 is supported and fixed on the case 211 to support and fix the gate driving assembly 220 and the power module 230, the gap 213 is formed between one end of the bracket main body 2122 facing away from the supporting portion 2123 and the case 211, the stopper 223 is clamped in the gap 213 between the bracket main body 2122 and the case 211, the second end 2214 of the mounting bracket 221 and one end of the case bracket 212 are relatively fixed, and are connected to the case bracket 212 through the first end 2213 of the mounting bracket 221, therefore, the mounting rack 221 of the gate drive assembly 220 and the box body bracket 212 are relatively fixed, and further the gate drive assembly 220 and the box body bracket 212 are relatively fixed, so that the internal parts can be mounted and dismounted in a portable mode under the condition of small mounting space.
Optionally, the bracket body 2122 is provided with a hollow-out slot 2124, and the stopper 223 extends into the gap 213 from the edge of the hollow-out slot 2124, and specifically, since the bracket body 2122 is provided with the hollow-out slot 2124, the stopper 223 can extend into the gap 213 between the box bracket 212 and the box 211 through the edge of the hollow-out slot 2124, and further be clamped in the gap 213 between the box bracket 212 and the box 211, so that the second end 2214 of the mounting bracket 221 and one end of the box bracket 212 are relatively fixed, and are connected to the box bracket 212 through the first end 2213 of the mounting bracket 221, so that the mounting bracket 221 of the gate driving assembly 220 and the box bracket 212 are relatively fixed, and further the gate driving assembly 220 and the box bracket 212 are relatively fixed.
Optionally, the driving circuit module 222 includes a gate driving circuit 2221, specifically, the direct current of the power grid is transmitted to the traction inverter 200 through a contactor, a fuse, and other devices, the power module 230 converts the received electrical signal, and the gate driving circuit 2221 provides a gate power to drive the inverter module of the traction inverter 200 to work, so as to finally convert the direct current into an alternating current.
Optionally, the driving circuit module 222 includes electric devices such as a capacitor, a resistor, and a power circuit board, specifically, the direct current of the power grid is transmitted to the traction inverter 200 through a contactor, a fuse, and the like, the power module 230 converts the received electric signal, and under the common cooperation of the electric devices such as the capacitor, the resistor, and the power circuit board of the driving circuit module 222, the gate driving circuit 2221 is driven to operate, so as to provide the gate power to drive the inverter module of the traction inverter 200 to operate, and finally, the direct current is converted into the alternating current
Optionally, the first mounting hole 2212 or the second mounting hole 2121 is a threaded hole, the fastener 224 sequentially penetrates through the first mounting hole 2212 and the second mounting hole 2121 and is screwed with the threads of the threaded hole, and specifically, when the stopper 223 is clamped in the gap 213 between the box body support 212 and the box body 211, since the first mounting hole 2212 or the second mounting hole 2121 is a threaded hole, the fastener 224 passing through one side of the first mounting hole 2212 and the second mounting hole 2121 sequentially penetrates through the first mounting hole 2212 and the second mounting hole 2121 and is screwed with the threads of the threaded hole, the first end 2213 of the mounting frame 221 of the gate driving assembly 220 is connected to the box body support 212 through the fastener 224 passing through one side of the first mounting hole 2212 and the second mounting hole 2121, so that the mounting frame 221 of the gate driving assembly 220 and the box body support 212 are relatively fixed, and the gate driving assembly 220 and the box body support 212 are relatively fixed, the portable mounting and dismounting of the internal parts can be realized under the condition of small mounting space.
The present application provides a rail vehicle 300 including a traction inverter 200. Fig. 5 is a schematic structural diagram of a rail vehicle according to an embodiment of the present application. As shown in fig. 5, the rail vehicle 300 is provided with a traction inverter 200, a high-voltage box 400 and a motor 500, the traction inverter 200 is connected to the high-voltage box 400 and the motor 500, specifically, the direct current of the power grid is transmitted to the high-voltage box 400 through a contactor, a fuse and other devices, the high-voltage box 400 further transmits the direct current to the traction inverter 200, the power module 230 converts the received electrical signal, the gate driving assembly 220 provides the gate power to drive the power module 230 to work, the direct current is further converted into alternating current, and finally transmitted to the motor 500, so as to realize the starting, braking and speed regulation of the alternating current traction motor 500, on one hand, the rail vehicle 300 can protect the traction inverter 200 from being damaged by the outside, so that the traction inverter 200 can work normally, on the other hand, the traction inverter 200 converts the direct current of the power grid into alternating current, so as to realize the starting, braking and speed regulation of the alternating current traction motor 500 inside the rail vehicle 300, Braking and speed regulation are carried out, so that the railway vehicle 300 can work normally.
The connection structure of the traction inverter and the rail vehicle 100 provided by the present application is as follows: the traction inverter 200 is arranged in the rail vehicle 300, the traction inverter 200 comprises a box assembly 210, a gate driving assembly 220 and a power module 230, the box assembly 210 comprises a box 211 and a box bracket 212, the power module 230 is arranged in the box 211 and is electrically connected with a driving circuit module 222 of the gate driving assembly 220, one end of the box 211 is fixed on the rail vehicle 300, the other end of the box 211 is connected with the box bracket 212, the box bracket 212 comprises a second mounting hole 2121, a bracket main body 2122 and a supporting part 2123, the supporting part 2123 is arranged at one end of the bracket main body 2122, the bracket main body 2122 is connected with the box 211 through the supporting part 2123, a hollow groove 2124 is arranged on the bracket main body 2122, a gap 213 is formed between one end of the bracket main body 2122, which is far away from the supporting part 2123, and the box 211, the gate driving assembly 220 comprises a mounting frame 221, the driving circuit module 222, a stopper 223, a fastener 224, an electric device and the like, the mounting bracket 221 has a mounting end face 2211 facing the box bracket 212, a first end 2213 of the mounting end face 2211 has a first mounting hole 2212 for connecting with the box bracket 212 of the box assembly 210, a second end 2214 of the mounting end face 2211 is connected with a stopper 223, the stopper 223 is clamped in the gap 213 between the box bracket 212 and the box 211 through a hollow groove 2124 arranged on the bracket main body 2122, and the second end 2214 of the mounting bracket 221 and one end of the box bracket 212 are relatively fixed, so that the gate driving assembly 220 and the box bracket 212 are relatively fixed, and the internal parts can be mounted and dismounted in a portable manner under the condition of small mounting space.
The application provides a traction inverter and a railway vehicle, the traction inverter comprises a box body component, a gate driving component and a power module, the box body component comprises a box body and a box body bracket connected with the box body, the power module is arranged in the box body, the gate driving component comprises a mounting frame, a driving circuit module and a stop piece, the driving circuit module is arranged on the mounting frame and is electrically connected with the power module, the mounting frame is provided with a mounting end surface facing the box body bracket, a first mounting hole is formed in the first end of the mounting end surface, the second end of the mounting end surface is connected with the stop piece, one end of the box body bracket is connected with the box body, a gap is formed between the other end of the box body bracket and the box body, the mounting frame is connected onto the box body bracket through a fastener penetrating through the first mounting hole, and the stop piece is inserted into and clamped in the gap so as to enable the gate driving component and the box body bracket to be relatively fixed, the portable mounting and dismounting of the internal parts can be realized under the condition of small mounting space.
In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "top", "bottom", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "circumferential", and the like, as used herein, indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the position or element so referred to must have a particular orientation, be of particular construction and operation, and thus should not be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communicated with each other inside the two elements or the interaction relationship between the two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present application may be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The traction inverter is characterized by comprising a box body assembly, a gate pole driving assembly and a power module, wherein the box body assembly comprises a box body and a box body bracket connected to the box body, and the power module is arranged in the box body;
the gate driving assembly comprises a mounting frame, a driving circuit module and a stop piece, wherein the driving circuit module is arranged on the mounting frame and is electrically connected with the power module; the mounting frame is provided with a mounting end surface facing the box body support, a first end of the mounting end surface is provided with a first mounting hole, and a second end of the mounting end surface is connected with the stop piece;
the one end of box support connect in the box, just the other end of box support with the clearance has between the box, the mounting bracket through wear to locate the fastener of first mounting hole connect in on the box support, just the stopper insert and the joint in the clearance, so that gate pole drive assembly with box support relatively fixed.
2. The traction inverter according to claim 1, wherein the case bracket further has a second mounting hole, and when the stopper is engaged with the gap, the first mounting hole and the second mounting hole are disposed opposite to each other.
3. The traction inverter of any one of claims 1 or 2, wherein the stop has one end connected to the second end of the mount and another end projecting away from the first end of the mount.
4. The traction inverter according to claim 3, wherein the stopper includes a fixing portion, a bent portion, and a catching portion, which are provided in this order in the stopper projecting direction;
the fixing portion is connected to the mounting frame, the first end of the bending portion is connected to the fixing portion, the second end of the bending portion bends towards the box body support, and the clamping portion is connected to the second end of the bending portion and clamped in the gap.
5. The traction inverter according to claim 4, wherein the clamping portion protrudes toward the mounting frame, and a highest point of protrusion of the clamping portion is flush with a height of the fixing portion.
6. The traction inverter according to claim 3, wherein the case bracket includes a bracket main body and a support portion, the support portion is provided at one end of the bracket main body, and the bracket main body is connected to the case through the support portion, and the gap is formed between the one end of the bracket main body facing away from the support portion and the case.
7. The traction inverter according to claim 6, wherein the bracket body is provided with a hollow groove, and the stopper protrudes from an edge of the hollow groove into the gap.
8. The traction inverter of claim 3, wherein the drive circuit module comprises a gate drive circuit.
9. The traction inverter according to claim 2, wherein the first mounting hole or the second mounting hole is a threaded hole, and the fastening member is sequentially inserted into the first mounting hole and the second mounting hole and screwed with threads of the threaded hole.
10. A rail vehicle, characterized in that it comprises a traction inverter according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220871958.8U CN217217140U (en) | 2022-04-15 | 2022-04-15 | Traction inverter and railway vehicle |
Applications Claiming Priority (1)
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